JPH0631711A - Apparatus for molding ceramics and manufacture of ceramics product - Google Patents
Apparatus for molding ceramics and manufacture of ceramics productInfo
- Publication number
- JPH0631711A JPH0631711A JP4206998A JP20699892A JPH0631711A JP H0631711 A JPH0631711 A JP H0631711A JP 4206998 A JP4206998 A JP 4206998A JP 20699892 A JP20699892 A JP 20699892A JP H0631711 A JPH0631711 A JP H0631711A
- Authority
- JP
- Japan
- Prior art keywords
- ceramic
- ceramics
- product
- mold
- ticn
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Producing Shaped Articles From Materials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、セラミック製品を成
形するためのセラミック成形装置及びこの成形装置を用
いたセラミックス製品の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceramic molding apparatus for molding a ceramic product and a method for manufacturing a ceramic product using this molding apparatus.
【０００２】[0002]
【従来の技術】セラミックス製品の製造に際しては、セ
ラミック粉末に適当な有機バインダや添加剤を加え、こ
れを混練したセラミックコンパウンドを原料セラミック
スとして使用しており、この原料をセラミック成形装置
で成形してセラミック製品を製造している。なお、セラ
ミック成形装置は、原料の混練に使用する混練機を始め
として、原料をペレット状に造粒するペレタイザーや、
ロールミル、成形機、金型などの装置類を総称するもの
である。2. Description of the Related Art In the production of ceramic products, a suitable organic binder or additive is added to ceramic powder, and the resulting mixture is kneaded to use a ceramic compound as a raw material ceramic. Manufactures ceramic products. The ceramic molding device includes a kneader used for kneading raw materials, a pelletizer for granulating the raw materials into pellets,
It is a general term for devices such as a roll mill, a molding machine, and a mold.
【０００３】ところで原料セラミックスに含まれている
セラミック粉末は、金属に比べて著しく硬度が高いた
め、セラミック成形装置ではこの原料セラミックスが接
触する面が摩耗を受け易い。従来、これら装置類におけ
るセラミックス原料接触面は、耐摩耗性に優れた材料で
構成しており、例えばイオン窒化処理を施して耐摩耗性
を向上させたＳＣＳ材、ＳＵＳ材を使用したり、耐摩耗
性に優れたステライト（商標）を肉盛している。By the way, since the ceramic powder contained in the raw material ceramic has a remarkably high hardness as compared with the metal, the surface of the ceramic forming device in contact with the raw material ceramic is easily worn. Conventionally, the ceramic raw material contact surface in these devices is made of a material having excellent wear resistance. For example, an SCS material or a SUS material that has been improved in wear resistance by performing an ion nitriding treatment is used. Stellite (trademark), which has excellent wear resistance, is built up.
【０００４】[0004]
【発明が解決しようとする課題】しかし、高硬度のセラ
ミック粉末に対しては、従来の耐摩耗性材料では、十分
に摩耗を防止することは困難であり、少なからず装置の
金属製の接触面が摩耗してしまう。摩耗の結果、接触面
からは金属粉が削り取られ、この金属粉が原料セラミッ
クス中に混入する。この原料セラミックスを用いた成形
品を脱脂、焼結してセラミックス製品を製造すると、金
属粉はコンタミネーションとして製品を汚染して、製品
品質を低下させるという問題がある。また、摩耗によっ
て混練機が損傷を受けると均一なコンパウンドの製造が
困難であり、また射出機のセラミックス流路などが損傷
を受けると安定した連続射出ができず、均一な成形品が
得られないという問題もある。この発明は、上記事情を
背景としてなされたものであり、セラミック成形装置に
おける原料接触面の摩耗を防止して、セラミック製品の
コンタミネーションをできるだけ防止して品質の優れた
セラミック製品を得ることができるセラミック成形装置
およびセラミック製品の製造方法を提供することを目的
とするものである。However, it is difficult to sufficiently prevent wear of conventional hard wear resistant materials against high hardness ceramic powder, and at least the metal contact surface of the apparatus is not a little. Wears out. As a result of the abrasion, metal powder is scraped off from the contact surface, and this metal powder is mixed in the raw material ceramics. When a ceramic product is manufactured by degreasing and sintering a molded product using this raw material ceramic, there is a problem that the metal powder contaminates the product as contamination and deteriorates the product quality. Further, if the kneading machine is damaged due to abrasion, it is difficult to manufacture a uniform compound, and if the ceramics flow path of the injection machine is damaged, stable continuous injection cannot be performed and a uniform molded product cannot be obtained. There is also a problem. The present invention has been made in view of the above circumstances, and it is possible to prevent wear of the raw material contact surface in the ceramic molding apparatus, prevent contamination of the ceramic product as much as possible, and obtain a ceramic product of excellent quality. It is an object of the present invention to provide a ceramic molding device and a method for manufacturing a ceramic product.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するた
め、本願発明のセラミックス成形装置は、原料セラミッ
クスが接触する面の少なくとも一部に、無機化合物の被
覆層を設けたことを特徴とする。無機化合物の被覆層は
セラミックコーティングで構成することができ、その種
別は特に限定されないが、ＴiＣ、ＴiＮ、Ｗ2Ｃなどを
例示することができる。また、コーティング材料とし
て、原料用セラミックス粉末と同一種のセラミックスを
用いるのが望ましい。In order to solve the above-mentioned problems, the ceramics forming apparatus of the present invention is characterized in that a coating layer of an inorganic compound is provided on at least a part of the surface in contact with the raw material ceramics. The coating layer of the inorganic compound can be constituted by a ceramic coating, and the type thereof is not particularly limited, but TiC, TiN, W 2 C and the like can be exemplified. Further, it is desirable to use the same kind of ceramic as the raw material ceramic powder as the coating material.
【０００６】セラミック成形装置は、混練機、ペレタイ
ザー、ロールミル、成形機、金型などの装置類の１種ま
たは複数の組合せからなるものであり、構成装置類が限
定されるものではない。要はセラミックス成形に使用す
る装置類であればよい。無機化合物の被覆層の形成も成
形装置を構成する装置類の全部ではなく一部装置類に行
うことが可能であり、また、１つの装置類中において
も、原料接触面の全部ではなく部分的に被覆層を形成す
ることも可能である。なお、上記成形機としては、押出
機や射出成形機を例示することができる。また、本願発
明のうち、セラミックス製品の製造方法は 上記したセ
ラミック成形装置を使用してセラミック成形品を成形す
ること特徴とする。The ceramic molding apparatus is composed of one kind or a combination of plural kinds of apparatuses such as a kneader, a pelletizer, a roll mill, a molding machine, and a mold, and the constituent apparatuses are not limited. The point is that any device used for ceramics molding may be used. The formation of the coating layer of the inorganic compound can be performed not on all of the devices constituting the molding apparatus but on some devices, and even in one device, the raw material contact surface is partially but not all. It is also possible to form a coating layer on. As the molding machine, an extruder or an injection molding machine can be exemplified. Further, in the present invention, the method for producing a ceramic product is characterized in that a ceramic molded product is molded using the above-described ceramic molding device.
【０００７】[0007]
【作用】すなわち、本願発明によれば、セラミック成形
装置の原料セラミックスが接触する面は、無機化合物で
覆われて硬度が向上しており、硬質のセラミック粉末と
の接触による摩耗が防止される。このため、原料セラミ
ックス中への金属粉の混入量を減少させ、コンタミネー
ションによるセラミックス製品の汚染を防止して、品質
の優れたセラミックス製品が得られる。In other words, according to the present invention, the surface of the ceramic molding apparatus that comes into contact with the raw material ceramics is covered with an inorganic compound to improve hardness, and wear due to contact with hard ceramic powder is prevented. Therefore, the amount of metal powder mixed in the raw material ceramics is reduced, contamination of the ceramic product due to contamination is prevented, and a ceramic product of excellent quality is obtained.
【０００８】[0008]
【実施例】セラミックス成形装置は、図１に示す混練機
１、射出成形機２および金型３で構成されており、混練
機１では、混練槽１ａの内面および撹拌羽根１ｂ表面
に、Ｗ2Ｃからなる約８μｍ厚のセラミックコーティン
グが形成されている。また、射出成形機２におけるシリ
ンダ２ａの内面にＷ2Ｃ、スクリュウ２ｂの表面にＴiＣ
Ｎ、シリンダヘッド２ｃの内面にＴiＣＮ、ノズル２ｄ
の内面にＴiＣＮのセラミックコーティングが同様に施
されており、金型３の型内面および原料注入路内面にも
ＴiＣＮのセラミックコーティングが同様に施されてい
る。EXAMPLE A ceramics molding apparatus comprises a kneading machine 1, an injection molding machine 2 and a mold 3 shown in FIG. 1. In the kneading machine 1, W 2 is formed on the inner surface of the kneading tank 1a and the surface of the stirring blade 1b. A ceramic coating of C having a thickness of about 8 μm is formed. Further, in the injection molding machine 2, the inner surface of the cylinder 2a is W 2 C, and the surface of the screw 2b is TiC.
N, TiCN on the inner surface of the cylinder head 2c, nozzle 2d
Similarly, a TiCN ceramic coating is applied to the inner surface of the mold, and a TiCN ceramic coating is applied to the inner surface of the mold 3 and the raw material injection passage.
【０００９】この成形装置に使用する原料セラミックス
は、ＺrＯ2、Ａl2Ｏ3、Ｓi3Ｎ4などのセラミック粉末
に、樹脂、ワックスからなる有機バインダを混合したも
のであり、この原料セラミックスを混練機１で加熱混練
し、所定時間混練した後に、混練機１から取り出し、ホ
ッパを介して射出成形機２内に送り込む。射出成形機２
では、ヒータでシリンダ２ａ内が加熱されており、スク
リュウ２ｂを、原料セラミックスが前進する方向に回転
させる。原料セラミックスはシリンダ２ｂ内を前進して
シリンダヘッド２ｃ、ノズル２ｄから金型３へと送出さ
れる。金型３では、注入された原料セラミックスにより
型内面に従って所望の成形品が得られる。その後は、金
型３から取り出した成形品を図示しない脱脂炉、焼結炉
で、脱脂、焼結してセラミックス製品が得られる。The raw material ceramics used in this molding apparatus are ceramic powders such as ZrO 2 , Al 2 O 3 and Si 3 N 4 mixed with an organic binder composed of resin and wax. The raw material ceramics are kneaded. The mixture is heated and kneaded by the machine 1, and after being kneaded for a predetermined time, taken out from the kneader 1 and fed into the injection molding machine 2 through the hopper. Injection molding machine 2
Then, the inside of the cylinder 2a is heated by the heater, and the screw 2b is rotated in the direction in which the raw material ceramics advances. The raw material ceramics advances in the cylinder 2b and is delivered to the die 3 from the cylinder head 2c and the nozzle 2d. In the mold 3, a desired molded product is obtained according to the inner surface of the mold due to the injected raw material ceramics. After that, the molded product taken out from the mold 3 is degreased and sintered in a degreasing furnace and a sintering furnace (not shown) to obtain a ceramic product.
【００１０】得られたセラミックス製品の汚染度を調べ
たところ、セラミック成形装置にセラミックコーティン
グを施さなかった場合に比べて、汚染度は著しく減少
（約半減）していた。なお、上記実施例では、セラミッ
ク装置の全てについて、セラミック原料が接触する面に
セラミックコーティングを施したが、特に摩耗が問題に
なる装置や部位に選択的、部分的にコーティングを施す
ことも可能である。When the contamination degree of the obtained ceramic product was examined, the contamination degree was remarkably reduced (about half) as compared with the case where the ceramic forming apparatus was not provided with the ceramic coating. In the above embodiments, the ceramic coating was applied to the surface of the ceramic material that comes into contact with all of the ceramic devices, but it is also possible to selectively or partially coat the device or site where wear is a particular problem. is there.
【００１１】[0011]
【発明の効果】以上説明したように本願発明のセラミッ
ク成形装置及びセラミック製品の製造方法によれば、セ
ラミック成形装置の原料セラミックスが接触する面の少
なくとも一部に、無機化合物の被覆層を設け、またこの
成形装置を使用してセラミック製品を製造するので、成
形装置の摩耗による金属粉が原料セラミックス中に混入
するのを防止して、コンタミネーションによる汚染の少
ない、品質の良好なセラミック製品が得られる効果があ
る。As described above, according to the ceramic molding apparatus and the method for manufacturing a ceramic product of the present invention, a coating layer of an inorganic compound is provided on at least a part of the surface of the ceramic molding apparatus in contact with the raw material ceramics, In addition, since ceramic products are manufactured using this molding equipment, it is possible to prevent metal powder from mixing into the raw material ceramics due to wear of the molding equipment, and to obtain good quality ceramic products with less contamination due to contamination. It is effective.
【図１】図１は、この発明の一実施例の一部断面図であ
る。FIG. 1 is a partial cross-sectional view of an embodiment of the present invention.
１ 混練機 ２ 射出成形機 ３ 金型 1 Kneading machine 2 Injection molding machine 3 Mold
───────────────────────────────────────────────────── フロントページの続き (72)発明者 竹谷 護 横浜市金沢区福浦２丁目２番１号 株式会 社日本製鋼所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mamoru Takeya 2-2-1 Fukuura, Kanazawa-ku, Yokohama City Stock Company Japan Steel Works
Claims (4)
とも一部に、無機化合物の被覆層を設けたことを特徴と
するセラミックス成形装置1. A ceramics forming apparatus, wherein a coating layer of an inorganic compound is provided on at least a part of a surface in contact with a raw material ceramics.
ィングである請求項１記載のセラミック成形装置2. The ceramic molding apparatus according to claim 1, wherein the inorganic compound coating layer is a ceramic coating.
たは２記載のセラミック成形装置3. The ceramic molding apparatus according to claim 1, wherein the molding apparatus is an injection molding machine.
ック成形装置を使用してセラミック成形品を成形するこ
とを特徴とするセラミックス製品の製造方法4. A method for manufacturing a ceramic product, which comprises molding a ceramic product using the ceramic molding apparatus according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4206998A JPH0631711A (en) | 1992-07-13 | 1992-07-13 | Apparatus for molding ceramics and manufacture of ceramics product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4206998A JPH0631711A (en) | 1992-07-13 | 1992-07-13 | Apparatus for molding ceramics and manufacture of ceramics product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0631711A true JPH0631711A (en) | 1994-02-08 |
Family
ID=16532502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4206998A Pending JPH0631711A (en) | 1992-07-13 | 1992-07-13 | Apparatus for molding ceramics and manufacture of ceramics product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0631711A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007122680A1 (en) * | 2006-04-13 | 2007-11-01 | Ibiden Co., Ltd. | Extrusion molding machine, method of extrusion molding and process for producing honeycomb structure |
| JP2008132752A (en) * | 2006-04-13 | 2008-06-12 | Ibiden Co Ltd | Extruder, extrusion molding method, and manufacturing process of honeycomb structure |
| JP2011506127A (en) * | 2007-12-05 | 2011-03-03 | エプコス アクチエンゲゼルシャフト | Injection molded PTC ceramic |
| JP2011506238A (en) * | 2007-12-05 | 2011-03-03 | エプコス アクチエンゲゼルシャフト | Raw material and method for preparing the raw material |
| WO2014098224A1 (en) * | 2012-12-21 | 2014-06-26 | 京セラ株式会社 | Sample holder |
| CN110923712A (en) * | 2019-12-25 | 2020-03-27 | 宁波涂冠镀膜科技有限公司 | Composite coating for high-glass-fiber raw material injection mold and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60203403A (en) * | 1984-03-29 | 1985-10-15 | 宮崎鉄工株式会社 | Improved vacuum extrusion molding machine |
| JPS63209903A (en) * | 1987-02-27 | 1988-08-31 | 日本碍子株式会社 | Jig for extrusion molding |
| JPH0210872A (en) * | 1988-06-29 | 1990-01-16 | Fujitsu Ltd | Manufacture of semiconductor device |
-
1992
- 1992-07-13 JP JP4206998A patent/JPH0631711A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60203403A (en) * | 1984-03-29 | 1985-10-15 | 宮崎鉄工株式会社 | Improved vacuum extrusion molding machine |
| JPS63209903A (en) * | 1987-02-27 | 1988-08-31 | 日本碍子株式会社 | Jig for extrusion molding |
| JPH0210872A (en) * | 1988-06-29 | 1990-01-16 | Fujitsu Ltd | Manufacture of semiconductor device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007122680A1 (en) * | 2006-04-13 | 2007-11-01 | Ibiden Co., Ltd. | Extrusion molding machine, method of extrusion molding and process for producing honeycomb structure |
| JP2008132752A (en) * | 2006-04-13 | 2008-06-12 | Ibiden Co Ltd | Extruder, extrusion molding method, and manufacturing process of honeycomb structure |
| JP2011506127A (en) * | 2007-12-05 | 2011-03-03 | エプコス アクチエンゲゼルシャフト | Injection molded PTC ceramic |
| JP2011506238A (en) * | 2007-12-05 | 2011-03-03 | エプコス アクチエンゲゼルシャフト | Raw material and method for preparing the raw material |
| US9034210B2 (en) | 2007-12-05 | 2015-05-19 | Epcos Ag | Feedstock and method for preparing the feedstock |
| WO2014098224A1 (en) * | 2012-12-21 | 2014-06-26 | 京セラ株式会社 | Sample holder |
| JP6027140B2 (en) * | 2012-12-21 | 2016-11-16 | 京セラ株式会社 | Sample holder |
| CN110923712A (en) * | 2019-12-25 | 2020-03-27 | 宁波涂冠镀膜科技有限公司 | Composite coating for high-glass-fiber raw material injection mold and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1888215A1 (en) | Static mixer and process for manufacturing the same | |
| JPH0631711A (en) | Apparatus for molding ceramics and manufacture of ceramics product | |
| DE2632037C2 (en) | Flame-sprayable flexible wire | |
| EP0801691B1 (en) | Process for manufacturing wear- and corrosion-protected surfaces on plastifier screws for injection moulding machines | |
| EP0310985B1 (en) | Sliding or sealing-element pairing and process for the manufacture thereof | |
| JPS6189810A (en) | Manufacture of fiber reinforced thermosetting resin molding material | |
| JP4924515B2 (en) | Kneading equipment | |
| DE68921529T2 (en) | Coating device. | |
| Tomori et al. | Injection mold performance of machined ceramic filled epoxy tooling boards | |
| CN107382311A (en) | A kind of preparation method of ceramic component | |
| JPS621446A (en) | Kneading and feed apparatus | |
| EP3921159B1 (en) | Device for producing components using additive manufacturing | |
| Layher et al. | Individualized Production of Ceramic Components Using Fused Layer Modelling | |
| JP2006213004A (en) | Member for injection molding machine and film forming method | |
| JPH07204483A (en) | Screw | |
| JPS5889341A (en) | Extruder for thermoplastic resin molding | |
| US9034210B2 (en) | Feedstock and method for preparing the feedstock | |
| JP2003136516A (en) | Mouthpiece for extrusion molding of honeycomb | |
| DE19508959C2 (en) | Shaped body made of ceramic, powder metallurgical or composite material and process for its production | |
| JPS5855210A (en) | Kneading method of resin powder material and kneader used thereof | |
| KR102109596B1 (en) | Method for forming pattern on high strength metal surface | |
| DE10052951A1 (en) | Slush or spray molding tool for polymers is coated with metal oxides from a gas phase to give easy release without pattern definition loss | |
| JP3329529B2 (en) | Composite cylinder for plastic molding machine | |
| Ainsley et al. | Costs and performance of injection moulding tools produced using slip casting | |
| JPH0431010A (en) | Monoaxial extruder with screw for highly kneading thermoplastic resin and blow molding machine using it |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Effective date: 20031224 Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Effective date: 20040107 Free format text: JAPANESE INTERMEDIATE CODE: A61 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080116 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090116 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 6 Free format text: PAYMENT UNTIL: 20100116 |
|
| LAPS | Cancellation because of no payment of annual fees |